DC Motor cant turn
DC Motor cant turn
(OP)
Hi friends,
Im facing problem with DC motor at our factory which is cant turn on load or rotate very slow. We have checked all the insulation at Field coil and armature coil and they are all having good IR which is Field coil(2000 Megaohm), Armature coil(2000 MegaOhm). Carbon brush just changed new. Commutator skimmed. What else i need to check to besides that?
Highly appreciate for all the comments and opinions.
Im facing problem with DC motor at our factory which is cant turn on load or rotate very slow. We have checked all the insulation at Field coil and armature coil and they are all having good IR which is Field coil(2000 Megaohm), Armature coil(2000 MegaOhm). Carbon brush just changed new. Commutator skimmed. What else i need to check to besides that?
Highly appreciate for all the comments and opinions.





RE: DC Motor cant turn
Armature and Field winding resistance? Currents and voltages in and across Windings? Measure and compare to motor nameplate.
Gunnar Englund
www.gke.org
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Half full - Half empty? I don't mind. It's what in it that counts.
RE: DC Motor cant turn
Bill
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"Why not the best?"
Jimmy Carter
RE: DC Motor cant turn
RE: DC Motor cant turn
… excessive vibrate and high amp on load…”
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The motor has Electrically Failed.
The cause(s) of failure are numerous.
It could be the Interpoles. It could be a combination of the Interpoles, and [the] Armature.
Until a complete inspection of the apparatus takes place, no one in this forum can contribute any
meaningful / helpful information.
Photos? Send photos of your failure.
Pictures help a lot!
John
RE: DC Motor cant turn
What does it feel like when you turn it by hand/torque wrench with no power and no load?
have to checked its bearings and clearances and vibration mount connection?
What is its load?
RE: DC Motor cant turn
Mike Halloran
Pembroke Pines, FL, USA
RE: DC Motor cant turn
Has your Tech. checked from motor back to it's source? Bad contacts maybe? I agree with Mike, check for machine resistance.
RE: DC Motor cant turn
So... The original motor "Electrically Failed".
John